El Mencho will be remembered for the violence he brought down on Mexico. As the co-founder of the Cártel Jalisco Nueva Generación, he built a structure that operated like a paramilitary force—trained crews, heavy weapons, discipline, and a willingness to hit anyone who got in the way.
But here’s what’s always stood out to me about Mencho: he was never an ostentatious narco.
I first really learned his name in the aftermath of his mentor, Ignacio “Nacho” Coronel Villarreal—the Sinaloa Cartel heavyweight the Mexican Army killed in Zapopan in July 2010. And over the years, through everything I’ve covered about Mencho, there was a consistent pattern: no public display of wealth. No fleet of Ferraris. No gold-plated rifles on Instagram. No designer costumes.
Rubén Oseguera Cervantes didn’t build his legend through shine. He built it through fear and results.
They called him “El Señor de los Gallos” (Lord of the Roosters) because he loved cockfighting. That nickname fits him better than anything else—ranchero pride, dominance, bloodsport. Mencho was a man who liked control, not attention.





Health Issues
From early in his reign as CJNG’s top boss, his health was always a concern. It’s been reported for years that he needed dialysis at some point. And deep in the sierra, in Villa Purificación territory, he had what locals and reporters called a “hospitalito”—a small, discreet facility built for one reason: to keep him alive and hidden.
This wasn’t charity, even if CJNG tried to sell it that way to locals. It was strategic. A white building, roughly 40 by 20 meters, with consultorios, a handful of beds (some reports say four to six), basic surgical areas, and equipment for dialysis and trauma care. Hidden off dirt roads, surrounded by trees, about 50 kilometers from Villa Purificación—CJNG country, the same region where they shot down a military helicopter in 2015—and roughly 250 kilometers southwest of Guadalajara.


When your health is your weak point, you plan differently. You think ahead. You control the final chapter the same way you controlled the rest.
At some point, Mencho reportedly ordered a casket built for himself—ready for when his time ran out.
So on Monday, March 2, 2026, his body was laid to rest in a gold casket, surrounded by thousands of dollars’ worth of flowers, family and friends, and a heavy military presence.
And the part that surprised me?
He didn’t do what most bosses do. No gaudy mausoleum. No oversized monument screaming his name into the landscape.
Even at the end, Mencho didn’t need spectacle. CJNG never did.
Discover more from Cartel Insider
Subscribe to get the latest posts sent to your email.

13 Comments
RIP Mencho, you were a leader amongst Narcos and ran things the way it should be done.
idiot
Your comment made me take note of the fact that with Mencho and Mayo out of the picture, all of the top cartel leaders are under fifty. The new generation of narcos are in charge.
With someone like “Mencho” who has faked their death in the past, would it not be reasonable to show everyone a picture of the body?
The government doesn’t want to piss off CJNG. Before his body was released, the cartel issued public threats of violence if the government didn’t hurry up.
I am waiting for a photo leak in the next few weeks. That and a dozen AI fakes.
Thanks for reading.
Mica Treviño
Its still early but I dont think CJNG is going to miss a beat. I suspect a transition has been planned for some time.
I agree with you, Mister White. It seems the 03 succession was accepted by the majority. He played a key role in solidifying the Chapitos alliance, and my contacts involved spoke highly of him.
The fact that this monster was allowed a funeral is proof that the government of Mexico has no consideration for human dignity. The family should have been given a plastic bag full of cremated human excrement, and the corpse should have been fed to pigs.
The fact that this monster was allowed a funeral is proof that the government of Mexico has no consideration for human dignity. The family should have been given a plastic bag full of cremated human excrement, and the corpse should have been fed to pigs.
4 Letters did not need spectacle? Well maybe if they only stuck to pushing weight. This generations ultima letra. Trash. He betrayed so many to get where he was at. I even told you he is real sick. You said. With today’s technology… Etc. I know people who knew him when he was Armando’s personal assistant. Nadie como Nacho, Maradona, Lobo, Tigre en esa area.
Free Don Erik Valencia Salazar (Cartel Nueva Plaza) he’s the only original founding member of Los Torcidos/CJNG left alive, Mencho betrayed him to take control of CJNG. I’ve always respected Menchos if not 100s of thousands of deaths. His expansion across MX was at the expense of innocent people. I remember when they were “Matazetas” and killed 35 people and claimed they were zetas but were all innocent people all to send a message.
Do you El Mencho gave up Erik Valencia Salazar, El 85 to become the sole leader?
Was always told there was groups only to the border and beyond the border was a different group. Much love to everyone and be safe out there 🎉🍾